Johnson creek is located in Jefferson county Wisconsin with a geographic area of 3.0 square miles. The total population in Johnson creek is 3,029 with 48.0% male and 52.0% female. Children under age 5 represent 7.4% of the population, under age 18 equal 25.3% of the population and over age 65 is 11.3% of the population. The median household income is $88,669, per capita income is $35,255. There are a total of 1,143 housing units with 77.9% owner occupied. Education includes 21.3% of residents that are high school graduates and 32.8% with a bachelor's degree or higher. The average temperature in Johnson creek in the summer is 66 degrees, and in the winter 17 degrees.